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counterintelligence operations stresses
intell.	контрразведывательная деятельность (Alex_Odeychuk)
counterintelligence operation
intell.	контрразведывательная работа (Alex_Odeychuk); контрразведывательная операция
mil.	контрразведывательная деятельность
English thesaurus
counterintelligence operations
USA	Proactive activities designed to identify, exploit, neutralize, or deter foreign intelligence collection and terrorist activities directed against the United States (JP 2-01.2) see also counterintelligence, operation

counterintelligence operations: 6 phrases in 3 subjects

Intelligence and security services	2
Military	1
Security systems	3